Machine-mold for use in blowing glass articles



N0. til 5,088. Patented Nov. 29, I898. J. MORELL &. J. B. KOPP.

MACHINE MOLD FOR USE IN BLOWING GLASS ARTICLES.

(Application filed Jan. 26, 1898.) (No Model.) v 2 Sheets-Sheet M//M M4ZL w: w onms PEYERS ca. Mmumh, WASHINGTON. u.

, Patented Nov. 29, I898. J. MORELL & J. B. KOPP. MACHINE MOLD FOR USE IN BLOWING GLASS ARTICLES.

(Application filed Jam 26, 1898.)

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JOHN MORELL AND JOHN B. KOPP, OF OORAOPOLIS, PENNSYLVANIA.

MACHINE-MOLD FOR USE IN BLOWING GLASS ARTICLES.

SPECIFICATION forming part of Letters Patent No. 615,088, dated November 29, 1898.

Application filed January 26, 189 8. Serial No. 663,002. (No model.)

To all whom, it may concern:

Be it known that we, JOHN MORELL and JOHN B. KOPP, citizens of the United States of America, residing at Ooraopolis, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Machine-Molds for Use in Blowing Glass Articles, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in glass-molds such as are employed in connection with the blowing of all glass articles similar to bulbs, chimneys, globes,- tumblers, and the like.

The principal features of our invention comprise a mold that is composed of two sections adapted to match neatly together and form a whole, the said sections being pivotally secured on top of a plate which is revolved by means of a shaft through the medium of suitable gearing connected thereto. Arranged around the mold is a circular track, against which the two sections are adapted to lie and upon which they travel. This circular track or ring, as it may be termed, is movable in a vertical direction for the purpose of closing the two sectionsv of the mold together, and when in the lowered position it permits the two sections of the mold opening by reason of their own specific gravity, the upper portion of the same being heavier. This track or ring is operated by means of a foot treadle, or other means may be employed, although this is shown in our illustrations as being most preferable, andhas a bifurcated end that engages a collar surrounding the driving-shaft and to which is connected a three-armed yoke, to which vertical rods connecting with the ring or track are connected.

-All of these features of construction, as well as the general operation of the machine, will be hereinafter more specifically described, and particularly pointed out in'the claims.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification and wherein like figures of reference indicate similar parts throughout the several views, in

which Figure 1 represents a perspective view of two of our improved molds, the one being closed and the other open, the View also showing an intermediate gear for transmitting power from one mold to the other. Fig. 2 is a vertical sectional view showing the ring or tical sectional view taken on a ditferent plane to show the treadle-lever. Fig. 4 is an underneath plan view of the centering-rin g upon which the mold revolves. Fig. 5 is aperspeetive view of the plate or table for the mold. Fig. 6 is a perspective view of the yoke for operating the track or ring. Fig. 7 is a horizontal sectional View of the mold when same is closed. Fig. 8 is a horizontalsectional view of a portion of the stand and lugs carried thereby, showing the adjusting means for the latter.

The mold is divided into two equal sections 1 and 2, each section being provided on its engaging face with a recess 3, within which the article being blown is molded, and the section 1 is provided either upon one or both of its engaging edges with a tongue 4, which matches with the groove 5 provided therefor in either one or both of the engaging edges of the section 2. The two sections of the mold are mounted upon a suitable plate or table 6, that is provided at two of its sides with upwardly-extending lugs 7, to which the two sections 1 and 2 of the mold are pivotally connected by means of dowel-pins 8 or other suitable means, said pins when they are employed extending into the centering plate or die 9 of the mold. This latter plate or die, which is arranged at the base of the mold, is provided with a central bushing 10, which is adapted to conform to and center in a central recess 11, that is provided therefor in the plate 6, this construct-ion serving as a means to retain the mold in its perfect position upon the plate. To this plate 6 is attached the vertical driving-shaft 12, which has or may have arranged thereon a gear 14, this latter being for the purpose of engagement with an intermediate gear 15, and thereby communicate motion to the gear 14 of the twin mold. The

driving-shaft 12 is designed to extend downward beneath the floor, where belt or other suitable connections are made with the driving-engine or other motive power. The plate 6 operates within an annular ring 10, which is supported by means of the standards 17, which are or may be formed integral with the said ring or connected thereto, as desired, and in our accompanying illustrations we have shown these standards also connected to a suitable base 18, that forms a support for the stand and mold.

The opening and closing of the mold are controlled by means of the centering-ring 19, which is arranged around the mold and is provided with a concave face 20, upon which the rollers 21 operate. These rollers are mounted in the flanges 22, carried by the two sections of the mold. This centering-ring is operated in a vertical movement by means of rods 23, which are attached to lugs 24, formed on the underneath edge of the ring for the said rods, the lower ends of the latter being connected to the arms 25 of the yoke 26, this latter being loosely mounted upon the shaft 12 and operated by means of a collar 27, also loosely mounted on said shaft and engaging the underneath side of the yoke. This collar is engaged by the bifurcated end 28 of the treadle-lever 29, which may be supported in suitable standards 30, and extends outward a suitable distance from the mold.

For the purpose of permitting the changing of the molds from one size to another and to allow for possible expansion of the mold and centering-ring we provide adjustable lugs 31, which are dovetailed into the ring 10 and carry an adjustingscrew 32, adapted to engage the outer rim of the said ring 16. These lugs are adjusted so as to permit the lugs 33, that are formed on the centering-ring 19, fitting neatly within the same. As the size of the mold is increased or decreased these lugs are adjusted so as to conform to the size of the mold employed, and as the heat may cause the expansion of the mold and centering-ring during the operation of the mold these lugs may be moved outward, so as to permit the operation of the said ring.

The table or plate (3 is slightly convex on its upper face, so as to permit the opening of the mold without the lower rim of the same interfering with the movement of the two sections.

The operation will, it is thought, be clearly understood from the foregoing description and from the drawings accompanying the application, as it will be observed that when the treadlelever is depressed by the foot of the operator the engaging end of this treadlelever forces the yoke 26 upwardly through the medium of the collar 27, and the yoke, by reason of its connection with the centeringring 19, elevates the latter and causes the two sections of the mold to be forced into engagement with each other, where they are held as long as the treadle is kept depressed. \Vhen, however, the pressure of the treadlelever is relieved, the support for the centering-ring 10 is thereby removed, and it doscends to its position upon the annular ring 16 by reason of its own weight. As this centering-ring descends downwardly the two sections of the mold, by reason of their greater weight being uppermost, automatically open to the limit of their movement, as permitted by the centering-ring,the friction-rollers 21 remaining at all times in engagement with the said centering-ring.

It will therefore be observed that as the mold is revolved theserollers will travel at all times upon the centering-ring, either when the ring is in the elevated or lowered position or when the same is moving in the upward or downward direction and the mold being thereby opened or closed. The mold, it will be observed, remains at all times open except when the treadle-lever is depressed.

The device may readily be operated by either hot paste or sawdust-paste, and one or more of the molds can easily be controlled and operated by one person.

In blowing gas the operator in order to obtain a uniform thickness must revolve the blowpipe, which is usually accomplished by revolving backward and forward between the hands. By the use of the improved mold this revolving of the blowpipe, which is considerable labor to the operator, is dispensed with, as the revolving of the mold permits the operator to hold the blowpipe without revolving. This feature is an exceedingly important one, as will be readily apparent to those skilled in the art, as it enables the operator to devote his attention entirely to the blowing process, thus securing the completion of a more perfect article than is attained where he is required to revolve the blowpipe during the blowing process.

Having fully described our inventiomwhat we claim as new, and desire to secure by Letlers Patent, is

1. In combination, a glass-mold formed in sections having a series of friction rollers mounted on its periphery and pivotally supported on a table or plate, tongues or tenons formed on the engaging face of one section and adapted to engage in grooves provided therefor on the engaging face of the matching section,a centering-ring surrounding said sections and operating on said friction-rollers, and means for operating said ring vertically to close the mold, substantially as shown and described.

2. In a glass-mold, the combination of the mold proper formed in two sections, a plate or table upon which said sections are pivot ally supported, means for rotating the mold, a centering-r111 g which is operative in a V61 tical direction and closes the mold when elevated,and permits the same to open by gravity as the centering-ring is lowered, and adjust able lugs which are adapted to be moved to conform to the size of the centering-ring, substantially as shown and described.

A glass-mold formed in sections adapted to match together to form the complete mold,

a centering-ring surrounding said mold,

means for operating said ring vertically to close the mold, friction-rollers journaled in the periphery of said mold and adapted to be in engagement at all times with the centering-ring, and adjustable lugs adapted to conform to the size of the centering-ring, substantially as shown and described.

4. In combination, a mold formed in sections which are adapted to match together, a

table upon which said sections are pivotally supported, an annular ring surrounding said table, supporting-standards for said ring, an operating-shaft connected to the under face of the table, a gear mounted on said shaft, adjustable lugs mounted on said annular ring, a centering-ring surrounding said mold, a yoke mounted on the aforesaid shaft, rods connecting the centering-ring with said yoke, a collar loosely mounted on said shaft, and a treadle-lever suitably supported and engaging said collar to elevate the centering-ring, and close the mold, substantially as shown and described.

5. In combination, a mold formed in sections which are adapted to match together, a table upon which said sections are pivotally supported, an annular ring surrounding said table, supporting-standards for said ring, an operating-shaft connected to the under face of the table, means for communicating motion to said shaft, adjustable lugs mounted in said annular ring, a centering-ring surrounding said mold, said centering-ring being provided with a convexed inner face, frictionrollers journaled in the periphery of the mold and adapted to be in continual engagement with the concave face of the centering-ring, a yoke mounted on the aforesaid shaft, rods connecting said yoke to the centering-ring, and means for operating said yoke whereby the centering-ring is elevated to close the mold, substantially as shown and described,

6. In combination, a mold formed in sections pivotally supported on a table or plate, a centering-ring, means for operating the said ring vertically to close the mold or permit the same to open, and adjustable lugs which may be moved to conform to the size of the centering-ring, substantially as shown and described.

7. In combination, a mold formed in sections pivotally secured to a table, an operating-shaft connected to said table, gears connected to said shaft wherebya train of molds may be operated, a centering-ring surrounding said mold, a treaded lever, connections between said centering-ring and the treadlelever whereby the centering-ring may be operated vertically to close the mold, frictionrollers mounted in the periphery of the mold and adapted to be in engagement with the centering-ring at all times, and adjustable lugs adapted to conform to the size of the centering-ring, substantially as shown and described.

8. A glass-mold formed in two sections pivotally supported on a common table, means for rotating said table and mold, a centeringring, said ring being operative vertically, and closing the mold when elevated, while permittin g the same to open by gravity when the said ring is lowered, and adjustable lugs con- JOHN MORELL. JOHN B. KOPP.

Witnesses:

EDWARD MILLER, GEO. B. PARKER. 

